operation An operation on a set S is a rule that associates with some number n of elements of S a resulting element in S. If n = 1, 2, 3, the operation is respectively called unary, binary, ternary and more generally is referred to as n-ary.
operation
数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。